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Shanghai Communications Regulatory Commission No. 3
All district people's governments and relevant units:
With the approval of the municipal government, the "Shanghai Residential Communi...[Details]
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As an electronic engineer, have you ever thought about these 3 questions? Why is it called 8051 microcontroller? What is the relationship between 8051 microcontroller and MCS-51 microcontroller? Is...[Details]
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In the design and use of the circuit breaker offline tester, it is necessary to accumulate a large amount of historical action data in normal and fault states to form a sample library as the basi...[Details]
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Abstract:
The intelligent video system is composed of a video analysis server located at the front end or back end. It analyzes the video images taken by the surveillance camera and can sep...[Details]
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As we all know, new energy vehicles must be one of the core focuses of the world in the past two years. There are currently two main forms of new energy vehicles, electric vehicles and hydrogen vehic...[Details]
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The use of leaf area testers can enable farmers to better analyze plant growth. The yield and quality of crops are closely related to the leaf area of crops. Within a certain range, the yield of cr...[Details]
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Mozilla released Firefox version 84 today with native support for Macs equipped with M1 chips, and said that the new version "significantly improves performance" compared to previous unoptimized vers...[Details]
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In the field of new energy, on-board DC-DC modules play an important role. They provide stable voltage and current for new energy vehicles, ensuring that various devices in the vehicle can work nor...[Details]
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The power supply industry has one of the most important parameters - power efficiency. During the design and debugging of power supply prototype boards, engineers can improve the efficiency of power ...[Details]
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This uses a timer to implement the stepper motor speed control, which saves more CPU and is more portable when organized with other programs.
#include
code unsigned char BUJIN = { 0x01, 0...[Details]
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Active filters are widely used in digital signal processing, communication, and automatic control, but it is difficult to design variable broadband active filters. Using a single-chip microcomputer...[Details]
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We have analyzed the BOM of the OPPO Enco W51 noise cancelling headphones, and this time we will analyze the number of components and their cost. Device analysis description: Before we start t...[Details]
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The MCU Control and Status Register provides information about the reset source that caused the MCU to reset. In ATmega103 compatibility mode only EXTRF and PORF exist. • Bit 4 – JTRF: JTAG reset f...[Details]
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The application of LED light sources in the field of lighting is the result of the rapid development of semiconductor light-emitting material technology and the gradual popularization of the concep...[Details]
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The power supply uses IGBT devices and single-ended forward circuits, and the operating frequency is 20kHz. The circuit principle is shown in Figure 1. The power supply has a constant current closed-...[Details]